DEALI - Departamento de Alimentos
URI permanente desta comunidadehttp://www.hml.repositorio.ufop.br/handle/123456789/540
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15 resultados
Resultados da Pesquisa
Item Rheological parameters of mixed Brazilian Cerrado fruits sugar-free preserves : the effect of body agents.(2023) Farias, Taísa Rezende Teixeira; Schiassi, Maria Cecília Evangelista Vasconcelos; Pereira, Patrícia Aparecida Pimenta; Souza, Vanessa Rios de; Lago, Amanda Maria Teixeira; Borges, Soraia Vilela; Queiroz, FabianaThe aim of this study was to evaluate the effect of the bodying agents (erythritol, sorbitol, xylitol, and polydextrose) and their mixtures on the preparation of mixed Brazilian Cerrado fruit preserves (marolo, soursop, and sweet passion fruit). Mixture design was used for product optimization and the preserves were evaluated by texture profile, stress relaxation test, and uniaxial compression test. The research data were analyzed using regression equations on SAS software. The results indicated that the rheological parameters were affected by the body agents. Erythritol should not be used as an isolated component because it provoked changes in the properties of the final product (harder and brittle preserves); xylitol and sorbitol made preserves more elastic, cohesive, and more fragile; and polydextrose showed a synergistic effect with erythritol for rupture deformation and lesser effects for hardness, adhesiveness, and gumminess.Item Influence of different types of sugar : “Batum” raspberry jelly and juice processing in subtropical regions.(2023) Curi, Paula Nogueira; Schiassi, Maria Cecília Evangelista Vasconcelos; Silva, Alexandre Dias da; Pio, Rafael; Pereira, Patrícia Aparecida Pimenta; Rossi, Maíra Ferreira de Melo; Souza, Vanessa Rios deThe aim was to evaluate jellies and juices of raspberry from the cultivar “Batum” made with different sugars (white refined sugar, white crystal sugar, demerara sugar, brown sugar and coconut sugar) evaluating physicochemical, physical and sen- sory aspects. The influence of information on product accept- ability was evaluated. Analyzes of solids, pH, total acidity and color were performed on the products. Texture profile analysis was also conducted on the jellies. Jelly produced with refined sugar presented the highest hardness, adhesiveness and gum- miness values. The jelly and juice made with each type of sugar changed the physicochemical and physical characteristics of the final products. When the characteristics and benefits of each sugar that were used were passed on to the consumer, the sensory acceptance was changed. The use of demerara and brown sugars was better accepted in jellies. As for juices, there was greater acceptability when using white crystal and demer- ara sugars.Item The influence of sensory attributes on overall liking by a gamma regression model : an analysis of Cerrado mixed fruits jams.(2021) Pereira, Patrícia Aparecida Pimenta; Souza, Vanessa Rios de; Schiassi, Maria Cecília Evangelista Vasconcelos; Dias, Ana Clara Costa; Queiroz, Fabiana; Pinheiro, Ana Carla Marques; Borges, Soraia Vilela; Cirillo, Marcelo ÂngeloFactors that influence the acceptability and preferences of consumers have been perceived as sensory attributes, such as color, appearance, flavor, and texture. Understanding which attributes are most important for overall liking would be helpful to establish meaningful criteria for product grading. Thus, in addition to the overall chemical and sensory qualities, it is important to appreciate which sensory attributes make a product pleasant or unpleasant to a consumer. In this context, the aim of this study was to evaluate the sensory attribute that contributes most to the overall liking by a gamma regression model using different formulations of mixed fruit jams made with Brazilian Cerrado fruits. Based on the proposed model, we concluded that appearance was the most important predictor of the overall liking of the assessors.Item Sensory perception of Brazilian petit suisse cheese by a consumer panel using three-way internal and external preference maps.(2020) Pereira, Patrícia Aparecida Pimenta; Souza, Vanessa Rios de; Carneiro, João de Deus SouzaThis paper aims to study the sensory perception of Brazilian petit suisse cheese. Physicohemical (total sugar, total acidity, moisture, L*, a*, b* and soluble solids) physical (texture profile analysis- hardness, cohesiveness and gumminess) and sensory (color, appearance, taste, consistency and overall liking) analyses were performed. Three-way internal and external preference maps were used to evaluate the sensory profile of five different brands of strawberry flavor petit suisse (the only differences between them were the hydrocolloid bulking agents added) correlating with physical and physicochemical parameters. For this, the sisvar and sensoMaker software were used. According to the results, there is variation in the formulations of the petit suisse cheeses that are currently marketed in Brazil, with the exception of total acidity, moisture, and luminosity. Furtherore, Brazilian consumers prefer petit suisse cheese that has intermediate sweetness (7.67 °Bx to 11.67 °Bx) and reject those that are very sweet. In addition, products made with gelatin, pectin and locust bean and guar gums are more accepted.Item Mixed Brazilian Cerrado fruits preserves without added sugar : the effect of bodying agents.(2019) Teixeira, Taísa Rezende; Schiassi, Maria Cecília Evangelista Vasconcelos; Pereira, Patrícia Aparecida Pimenta; Souza, Vanessa Rios de; Lago, Amanda Maria Teixeira; Borges, Soraia Vilela; Queiroz, FabianaPurpose: The purpose of this paper is to evaluate the effect of the bodying agents (erythritol, sorbitol, xylitol and polydextrose) and their mixtures on the preparation of mixed Brazilian Cerrado fruit preserves (marolo, soursop and sweet passion fruit). Design/methodology/approach: The simplex mixture design was used for product optimization and the preserves evaluated by physical, physicochemical and sensory properties. The research data were analyzed using regression equations on SAS University and exploratory analysis by principal component analysis and parallel factors techniques on Sensomaker software. Findings: The results show that erythritol and polydextrose bodying agents should not be used as pure components because they provoked changes in the properties of the final product and negatively influenced the sensory attributes. While the high concentrations of xylitol and sorbitol provided better sensorial acceptance, being considered, therefore, good substitutes for sucrose. Practical implications: This research has shown it is feasible to use bodying agents in the preparation of mixed Brazilian Cerrado fruit preserves without added sugar. Social implications: The development of mixed preserves could increase population access to the Brazilian Cerrado fruits. In addition, sugar-free preserves are a viable alternative for adding value to the product and satisfy all the consumers. Originality/value: The combination of properties of two or more fruits and use of bodying agents can improve sensory, physical and physicochemical characteristics of the final product. However, there are technological challenges to evaluate in the preparation of mixed Brazilian Cerrado fruit preserves without added sugar.Item Influence of gelling agent concentration on the characteristics of functional sugar-free guava preserves.(2019) Pereira, Patrícia Aparecida Pimenta; Souza, Vanessa Rios de; Silva, Andressa Alvarenga; Queiroz, Fabiana; Borges, Soraia Vilela; Pinheiro, Ana Carla Marques; Carneiro, João de Deus SouzaResponse surface methodology was used to determine the influence of gelling agents and their concentrations on the sensory characteristics and texture of functional sugar-free guava preserves. The gelling agents used were locust bean gum (0.16% to 1.84%), carrageenan (0.16% to 1.84%) and low methoxyl pectin (1.16% to 2.84%). The effects on the sensory and texture characteristics were studied using a central composite design. The results showed that the carrageenan and locust bean gums strongly influenced the texture and sensory characteristics of the functional sugar-free guava preserves. It is recommended that low methoxyl pectin at a concentration of 2.0% can be used together with carrageenan and locust bean gums. The results suggest that for the best scores of the sensory attributes, locust bean gum and carrageenan concentrations ranging from 0.16% to 0.41% must be used. Higher instrumental values of the texture characteristics were achieved with higher concentrations of these two gums.Item Sugar-free guava preserve : influence of additives on textural properties.(2017) Pereira, Patrícia Aparecida Pimenta; Souza, Vanessa Rios de; Vieira, Mariele Antunes; Queiroz, Fabiana; Borges, Soraia Vilela; Carneiro, João de Deus SouzaThe development of sugar-free products requires the inclusion of many additives to provide all of the characteristics of sugar products. Thus, the present study aimed to evaluate the effect of different additives (fructooligosaccharide, thaumatin, sucralose, stevioside, maltitol, xanthan gum, locust bean gum, carrageenan, low methoxyl pectin and polydextrose) on the textural properties of functional sugar-free guava preserves. The Plackett and Burman design with 19 tests was used. Texture profile analysis and stress relaxation test were performed. The results were analyzed by analysis of the effects and principal component analysis. The low methoxyl pectin positively affected some parameters of the texture profile (hardness and gumminess) and relaxation test properties (η2 and k1). The other ingredients (except maltitol, which did not affect any textural parameters) affected only the texture profile parameters. The results also indicated that higher concentrations of gelling agents in the product resulted in greater influences on the textural properties.Item Influence of storage time and packaging on the sensory profile of functional diet guava preserve.(2017) Mesquita, Karina Scatolino; Souza, Vanessa Rios de; Rodrigues, Jéssica Ferreira; Salierno, Camila Carvalho Menezes; Borges, Soraia Vilela; Carneiro, João de Deus Souza; Pinheiro, Ana Carla MarquesPurpose – People are increasingly concerned about food and health and seek for functional and sugar-free products. However, there are technological challenges when adding functional components and substituting sugar in foods. Thus, the purpose of this paper is to evaluate the influence of packaging and storage time on the sensory profile of functional diet guava preserve added with prebiotics, supporting the development of functional and sugar-free products and contributing to the product variety in the market. Design/methodology/approach – A two-factor full factorial design was conducted in triplications that evaluated transparent and opaque packaging vs storage time (six months). The products were stored in packages with different light permeability (transparent and opaque). Quantitative descriptive analysis (QDA) and acceptance tests were performed. Findings – The packaging material did not affect the sensory changes of functional diet guava preserve during the six months of storage. QDA test showed that from three months of storage the original characteristics of the product were lost and a slight decrease in overall acceptance was observed after four and six months. However, during the six months the products had good acceptance; consequently, it was not possible to establish their rejection before this period. Research limitations/implications – More detailed studies regarding a longer storage period, including the physical and chemical measurements must be done to clarify other points about the influence of packaging and storage time on the sensory profile of functional diet guava preserve added with prebiotics. Therefore, researchers are encouraged to test the proposed propositions further. Practical implications – The development of a functional and sugar-free preserve is a good alternative to provide a product that meets the actual consumer desires and adds value to the product. However, there are technological challenges when adding functional components and substituting sugar in foods. Thus, this study provides important information for the development of sugar-free and functional products, and to prolong their shelf life. Originality/value – There are few studies with respect to the sensory aspects during the storage of functional preserves. Thus, this work will aid future studies, supporting the development of functional and sugar-free products and contributing to the product variety in the market.Item Analysis of various sweeteners in low-sugar mixed fruit jam : equivalent sweetness, time-intensity analysis and acceptance test.(2013) Souza, Vanessa Rios de; Pereira, Patrícia Aparecida Pimenta; Pinheiro, Ana Carla Marques; Bolini, Helena Maria André; Borges, Soraia Vilela; Queiroz, FabianaFor a sweetener to successfully replace sucrose in food formulations, studies must first be conducted to determine the concentrations of the sweeteners to be used and their equivalent sweetness compared with sucrose. After establishing the optimal concentration of each sweetener, it is necessary to determine which is more similar to sucrose. The objective of this study was to determine the equivalent amount of different sweeteners, necessary to promote the same degree of ideal sweetness in mixed fruit (marolo, sweet passion fruit and soursop) jam and to characterise the time–intensity profile and consumer acceptance. With respect to the mixed fruit jam containing 40% (w/w) of sucrose, sucralose presented the highest sweetening power, being 1033.59 times sweeter than sucrose, followed by sucralose/acesulfame-K/neotame 5:3:0.1 (982.80), sucralose/steviol glycoside 2:1 (862.67), sucralose/acesulfame-K 3:1 (847.45) and sucralose/thaumatin 1:0.6 (284.29). The sweeteners had a time–intensity sweetness profile similar to sucrose and a time– intensity bitterness profile different from sucrose but similar among themselves. In relation to sensory acceptance, a significant difference between the low-sugar jam and the traditional jam was not observed.Item Analysis of the subtropical blackberry cultivar potential in jelly processing.(2014) Souza, Vanessa Rios de; Pereira, Patrícia Aparecida Pimenta; Pinheiro, Ana Carla Marques; Lima, Luiz Carlos de Oliveira; Pio, Rafael; Queiroz, FabianaIn Brazil, there are numerous blackberry cultivars under cultivation, however, only a few cultivars, such as the Guarani, are displayed/used for processing. In this context the aim of this work was to study the effects of different Brazilian blackberry cultivars (Guarani, Brazos, Comanche, Tupy, Cherokee, Caingangue, and Choctaw) on the physicochemical characteristics, texture profiles and the consumer acceptance of the resulting jelly to identify the potential use of these cultivars in the jelly industry. It is feasible to produce blackberry jellies with the Tupy, Comanche, Brazos, Guarani, and Choctaw cultivars because these jellies demonstrated good acceptability combined with good productivity. Consumers were shown to have a preference for a less adhesive, more acidic jelly. This study provides a useful insight about the Brazilian blackberry cultivar potential in jelly processing.